My vision of open source art:
Release your artwork openly and freely to the web. Open standards like PDF, JPEG, RAW, TIFF, PNG, .ZIP, etc.
No need for copyright, watermarks, DRM (digital rights management), or other “protections”. Artwork wants to be free, and we love artwork which is open and free!
Direct downloads, from your own FTP server, or public download links via Dropbox/Google Drive. The encouragement of sharing, being open, and having your art be decentralized!